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Make a copy of the first stethoscope with only a cardboard tube! René Laennec invented the first stethoscope in 1819 using an actual paper tube!

free Ages 4 - 14 5 to 10 minutes
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In this activity, learners will investigate the sounds of the heart.

$1 - $5 per group Ages 6 - 14 30 to 45 minutes